Swiss Meringue Buttercream

Use this buttercream to make our Meringue Bouquet Cupcakes.

  • Yield: Makes 6 cups
Swiss Meringue Buttercream

Source: Martha Stewart Weddings, Summer 2009

Ingredients

  • 1 1/4 cups sugar
  • 5 large egg whites
  • 1 pound (4 sticks) unsalted butter, cut into tablespoons, room temperature
  • 1 teaspoon pure vanilla extract

Directions

  1. Combine sugar and egg whites in mixer bowl, and set over a pan of simmering water. Whisk constantly until sugar is dissolved and mixture registers 140 degrees on an instant-read thermometer.

  2. Transfer bowl to mixer; whisk on medium-high speed until whites are fluffy and cooled, about 10 minutes. Continue to whisk until stiff, glossy peaks form.

  3. Reduce speed to medium-low; add butter by the tablespoon, whisking well after each addition. Whisk in vanilla. Buttercream can be refrigerated in an airtight container up to 3 days or frozen up to 1 month. Bring to room temperature before using; beat on lowest speed until smooth, about 3 minutes.

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